Button up
Button up verb - Refuse to talk or stop talking; fall silent.
Join up
Cite this Source
Join up and Button up. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/button_up/join_up
Button up & Join up. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/button_up/join_up>.
Join up or Button up. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/button_up/join_up.
Google Ngram Viewer shows how "button up" and "join up" have occurred on timeline